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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-00-550-6617 P/N PRP568-221-4024-65 · AS3578-221 · MS9021-221 · M59021-221 · +5 more
  2. O-RING NSN 5331-00-547-3845 P/N 107517-3 · AS568B-167 · AS568B · 167-11306 · +5 more
  3. O-RING NSN 5331-00-542-1849 P/N 1877649PC41 · 90488PC41 · 187241 · 100A10-17 · +5 more
  4. O-RING NSN 5331-00-542-1722 P/N 100A10-4 · MILG22050 · MIL-DTL-22050 · 217495-11BUTYL · +5 more
  5. O-RING NSN 5331-00-537-3927 P/N AS3209-283 · MILR83248 · M83248/1-283 · MS9388-283 · +5 more
  6. O-RING NSN 5331-00-531-3714 P/N PRP568-216-4024-65 · AS3578-216 · MS9021-216 · 2-219 N506-65 · +5 more
  7. O-RING NSN 5331-00-531-2260 P/N PRP568-224-4024-65 · AS3578-224 · 5331PL1057375 · MS9021-224 · +5 more
  8. O-RING NSN 5331-00-530-1993 P/N 340-4300-1002554 · 240-6709-1038966REVAPC32 · X1-2409-1503856PC24 · 313-4302-984234PC11 · +5 more
  9. O-RING NSN 5331-00-527-9232 P/N 36008 · 5430-8 · AS3569-230 · AN123990 · +5 more
  10. O-RING NSN 5331-00-527-7980 P/N AS9386-222 · MS9386-222 · 5331PL1739709 · 5331PL0657023 · +5 more
  11. O-RING NSN 5331-00-526-5803 P/N 5065D37 · AS3570-234 · AN123894 · AN123894 · +5 more
  12. O-RING NSN 5331-00-514-8427 P/N 537531-11 · S9515-AL-MMA-010,7-40 ITEM 4 · CP031A011D3 · NV822202 FIND 10 · +5 more
  13. O-RING NSN 5331-00-501-9820 P/N PRP568-113-4200-70 · AMS3215 · AS568-113 · 13-0617-13 · +5 more
  14. O-RING NSN 5331-00-498-5776 P/N 136-11647 · PRP136-11647 · MIL-DTL-25988/1 · MILR25988 · +5 more
  15. O-RING NSN 5331-00-486-2511 P/N A6689.244.222 · A06689.244.222 · AS568A2-244E540-80 · 20354 PC 23 3 IN · +5 more
  16. O-RING NSN 5331-00-486-2361 P/N 1000-0060-179 · MIL-R-83248/1 · 089834-023-V1 · 089834-023-VI · +5 more
  17. O-RING NSN 5331-00-482-7963 P/N AMS3304 · AS3582-236 · MS9068-236 · MS9068-236ES · +5 more
  18. O-RING NSN 5331-00-482-4461 P/N AS568-137 · AS568B-137 · D2000-M3CH714A25B34EO16EO36 · 2-137 N674-70 · +5 more
  19. O-RING NSN 5331-00-480-3741 P/N 82005504-005 · 82005504-005 · 82005504-005 · 82005504-005 · +5 more
  20. O-RING NSN 5331-00-480-1848 P/N 34053 FIND 31 · MILR25988 · MIL-DTL-25988/1 · M25988/1-023 · +5 more
  21. O-RING NSN 5331-00-463-0326 P/N S9233-XX-MMA-010/LCS SH7-93 #3 · 00652687063 · AS568-440 · 0065268.70.63 · +5 more
  22. O-RING NSN 5331-00-460-4674 P/N 65119-232-915 · 84360PC30 · 659-232-915 · 65119-232 · +5 more
  23. O-RING NSN 5331-00-447-8422 P/N 1227568 · 6002-184PC23 · AS3582-217 · ZZ-R-765 · +5 more
  24. O-RING NSN 5331-00-432-4411 P/N AS568A-032 · ARP568-032MILG23652TY2 · A6689-032-212 · A6689.032.212 · +5 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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